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FLUX.2 brings enterprise-grade efficiency and professional precision to text-to-image generation. It closes the gap between generated and real imagery with accurate hands, faces, and textures—all while respecting brand guidelines through hex-code color steering. [max] offers the highest quality with grounding search for real-time information.
Try it live — Test FLUX.2 [max], [pro], and [flex] in the playground before integrating.
Photorealistic portrait generated by FLUX.2
Professional AI conference photograph with complex typography and hex color specifications
Weather in Freiburg

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Capabilities

Explore why FLUX.2 is the choice for professional workflows.
Close the gap between Generated and Real. FLUX.2 produces realistic image details up to 4MP: accurate hands, faces, fabrics, logos, and small objects that other models miss. Ideal for creative photography, e-commerce shots, and product marketing.
Lifestyle shot

Bulldog + glam nails

Tiger shot

Tiger in the forest

Product shot

Retro computer + pixel cabin

Face in the cold

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Integration

Integrate FLUX.2 text-to-image generation into your application in three steps.
1

Authenticate

Get your API key from the BFL Dashboard. You will use this in the x-key header.
2

Create a Generation Request

Send a POST request to /v1/flux-2-max, /v1/flux-2-pro, or /v1/flux-2-flex. The prompt is required.
curl -X POST https://api.bfl.ai/v1/flux-2-max \
  -H 'accept: application/json' \
  -H "x-key: $BFL_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "prompt": "Cinematic shot of a futuristic city at sunset, 85mm lens",
    "width": 1920,
    "height": 1080,
    "safety_tolerance": 2
  }'
3

Check Pricing

The API response includes pricing information. The cost field shows the credits charged for the request.
# Response includes cost information
{
  "id": "task-id-here",
  "polling_url": "https://api.bfl.ai/v1/get_result?id=task-id-here",
  "cost": 3.0,           # Credits charged for this request
  "input_mp": 0.0,      # Input megapixels
  "output_mp": 2.07     # Output megapixels
}
4

Retrieve the Result

Poll the polling_url until the status is Ready.
# Poll until status is 'Ready'
curl -X GET "$POLLING_URL" \
  -H 'accept: application/json' \
  -H "x-key: $BFL_API_KEY"

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Configuration

ParameterTypeDefaultDescription
promptstring—Required. Text description of the image to generate.
widthinteger1024Output width in pixels. Must be a multiple of 16.
heightinteger1024Output height in pixels. Must be a multiple of 16.
seedintegerrandomSet for reproducible results.
safety_toleranceinteger2Moderation level: 0 (strict) to 5 (permissive).
output_formatstring"jpeg"Output format: "jpeg" or "png".
[flex] only parameters:
ParameterTypeDefaultDescription
stepsinteger50[flex only] Number of inference steps. Maximum: 50, default: 50. Higher = more detail, slower.
guidancefloat4.5[flex only] Guidance scale. Controls how closely the output follows the prompt. Minimum: 1.5, maximum: 10, default: 4.5. Higher = closer prompt adherence.
Resolution: Minimum 64x64, maximum 4MP (e.g., 2048x2048), recommended up to 2MP. Output dimensions are always multiples of 16.

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Model Selection

[max][pro][flex]
Best forHighest quality, final productionProduction workflows at scaleQuality with control
Speed< 15 seconds< 10 secondsHigher latency
ControlsStandardStandardAdjustable steps & guidance
Grounding searchYesNoNo
Pricingfrom $0.07 / MPfrom $0.03 / MP$0.06 / MP

FLUX.2 [max]

Top-Tier QualityHighest image quality and prompt adherence. Includes grounding search for real-time information. Best for professional content needing the final touch.

FLUX.2 [pro]

Fast & EfficientBest balance of speed and cost. Ideal for high-volume applications needing fast turnaround.

FLUX.2 [flex]

Quality with ControlAdjustable steps and guidance. Best when you need fine-grained control over generation.